DE60013144T2 - ABSORBENT ARTICLE WITH IMPROVED RETENTIONABILITY FOR LIQUIDS - Google Patents

Abstract

An absorbent article with a longitudinal direction and a transverse direction, a center line (29) running in the longitudinal direction, a center line running in the transverse direction, two side edges (9, 10) running in the longitudinal direction, two end edges (11, 12) running in the transverse direction, and including a liquid-permeable surface layer (2), a liquid-tight surface layer (3), a side barrier pocket (40, 41) arranged along each side edge (9, 10) and having an opening directed towards the longitudinal center line, and an absorption body (4) enclosed between the surface layers (2, 3). The absorption body (4) includes at least one intermediate storage part (22-25) and a liquid transfer part (26). The intermediate storage part (22-25) is arranged along a side edge (9, 10), in direct contact with the liquid transfer part (26), and inside a side barrier pocket (40, 41). The transport of liquid between the material in the intermediate storage part (22-25) and the liquid transfer part (26) is such that the liquid transfer part (26) drains liquid from the intermediate storage part (22-25).

Description

TECHNICAL TERRITORY

The The invention relates to an absorbent article having a longitudinal direction and a transverse direction, a center line extending in the longitudinal direction, one Center line, which runs in the transverse direction, two side edges, the run in the longitudinal direction, two end edges extending in the transverse direction and comprising a liquid-permeable surface layer, a liquid density Surface layer, a barrier side pocket, which is arranged along each side edge is and an opening which corresponds to the longitudinal center line is directed, and an absorbent body, between the surface layers is arranged and at least one intermediate storage part and a Liquid transfer part comprises.

BACKGROUND

A common one Problem with absorbent articles such as a Diaper or an incontinence pad, which are intended to body fluids to absorb, is that fluid over the Side edges of the article also expires. To prevent the support lateral leakage, it is usual, different types of leakage barriers along the side edges of the object. For example, diapers and incontinence pads often provided with elastic elements during the Article is used to tighten the legs of the user and the side edges of the article in close contact with the Hold legs. Elastic elements can also be used increased by Edge barriers to form. It is also possible to increase barriers in one way and to generate ways, e.g. by providing ribs or the like, at the liquid is prevented from freely over to flow the side edges of the object.

It However, it was found that despite all efforts, the previously performed The problem was to avoid leakage at the side edges still exists, especially in certain applications. Lies the user in a lateral position, there is a great risk the lateral leakage. Body fluids which are issued in this position run off and accumulate by gravity on the longitudinal side edges of the article to which the available absorbent material is quickly supersaturated with liquid. This leaves liquid which is not absorbed, but free along the side edges can run. Of course is the risk big, that this liquid over the Side edges of the object is pushed out and escapes when the user moves so that a game between the object and the body of the User occurs.

One reason for that increased Risk of leakage when the user is in a side position is that the absorption capacity of the absorbent Subject was used only to a limited extent. consequently the absorption material is closest to the side edge, the one at the bottom, when the user is lying, is oversaturated, while the user is lying Main part of the absorption capacity of the item is never used up. It can therefore happen that body fluid leaking from a practically dry object. An absorbent article according to the preamble of Claim 1 is known from document WO-A-98/22067.

TASK OF THE INVENTION

One The aim of the present invention is to provide an absorbent article with improved liquid handling ability accessible close. Another object of the invention is to provide an article to provide with improved safety against leakage, even if the person using the item is in a lateral position lies. An article according to the invention has Furthermore, a high degree of utilization of the absorption capacity, the in the absorption body of the object is present.

SHORT DESCRIPTION THE INVENTION

One absorbent article according to the invention is disclosed in claim 1.

Of the The article has two edge portions which are at each end edge are arranged, the barrier side pockets more advantageous Way arranged on at least one edge portion of the article are.

The purpose of the staging part located in the barrier side pocket is to trap liquid running to the edge portions of the absorbent article. This generally happens when the person using the item is on their side. By thus selecting the material of the absorbent body that the liquid transfer part has the ability to discharge liquid from the intermediate storage part, liquid collecting in the barrier side pocket can be gradually transported away from there through the liquid transfer part. When new liquid reaches the absorbent article, this liquid can also be absorbed by the material in the intermediate storage member. As the fluid affinity in the intermediate storage part is lower than the liquid affinity in the liquid transfer part, the liquid transfer is conveyed from the intermediate storage part into the liquid transfer part. The fluid affinity for a given material as compared to another material depends on a number of factors known to those skilled in the art, eg, capillary pressure, effective pore size, wetting angles, diffusion, ability of the material, fluid in one Chemically bind gel, etc.

It is important that the absorbent article allows liquid to transport in a plane and that the liquid with the least possible Obstruction in and out of the barrier side pockets can. It is therefore essential that the barrier side pockets for passage on liquid held open in the plane, even if the user is lying. It is also essential to provide optimal liquid transport in the article to achieve that the different absorption parts of the absorption body in to be in direct contact with each other. That two parts of the absorption body in Being in direct contact with each other, means that at least one surface of the an absorption part against a surface of the other absorption part lies, leaving liquid between the parts without the influence of another component in transfer the absorption body can be. additionally must not play or clearance at the contact surfaces between the absorption parts, at least not, when the parts are wet. Such a game or such Gap interrupts the transport channels in the absorption body, thereby the fluid transfer is negatively affected between the absorption parts. It is possible within the scope of the invention to select absorbent material, the swells when wetted. In such a case, the absorbent article before wetting a certain game or have a narrow gap between adjacent parts below the condition that the said game or said gap be bridged can when the structure is wetted and swells.

It has proven to be beneficial, barrier side pockets by placing a liquid barrier in the form of a hydrophobic sheet of material over each staging area of the absorption body train. Such a liquid barrier can be on the inside or on the outside of the liquid-permeable surface layer be arranged of the object. The inside of a surface layer is meant to be the surface the surface layer to designate, in the direction of the absorption layer of the object is directed while the outside the surface which is meant to be directed to a person carrying the object to be. The hydrophobic material layer that forms the liquid barrier has an essential skill on, the liquid penetration can withstand and, if so desired, be completely liquid-tight. However, it is especially important that the liquid barrier material in the section having the essential ability of fluid permeation to resist the actual Bag forms, i. the section that defines the cache area surrounds while such areas of the liquid barrier material, the closest to the pocket opening are arranged, may be formed of a material, the slight less liquid-tight is. Suitable barrier materials are plastic films and hydrophobic, preferably fine-pored nonwovens. Layers of wax or similar coatings, on the liquid-permeable surface layer are arranged also be used. By placing the liquid barrier material on the inside of a textile surface layer, the surface layer moisture from the skin, i. that the absorbent article is more comfortable is to be worn and there is a lower risk of skin irritation, which are caused by a high level of humidity. To the Accumulation of moisture on the surface of the liquid-tight barrier layer It is also advantageous to reduce breathable films as liquid barrier layer to use.

The hydrophobic material layer may consist of a section of the liquid-tight surface layer consist, which is folded around the side edge of the object, such that an edge portion of the absorbent body of the article, the comprising the intermediate storage part, thereby in the liquid blocking Side pocket formed by the folded surface layer included is. Alternatively, the barrier pocket can be separated by a separate strip from liquid blocking material be formed with the liquid-tight surface layer in a substantially liquid-tight Seam is connected along the side edge of the object.

The Barrier side pockets can be arranged along the entire side edges or only at one or both of the edge portions of the article.

To ensure that this barrier side pocket is kept open and allows liquid to flow to the intermediate storage part even when the barrier side pocket is subjected to compression, means are provided for keeping the barrier side pocket open for fluid transfer to and from the intermediate storage part cher way arranged at the opening of the barrier side pocket.

A such device may e.g. from one or more compressed Grooves in the absorption body consist. Another example of a device that uses can be to keep the side pocket open is one or more elastic elements attached to the barrier side pocket are. It may also be useful be the material in the barrier side pocket free of connections to leave the absorbent material within the pocket or free at least one edge portion of the barrier side pocket to leave compounds with the absorbent body. It is also possible, the side barrier pocket using an adhesive to attach to the absorbent material, which is based on wetting solves. The Barrier side pockets can be provided with spacers made of resilient cotton, foamed material or a similar one elastic material or the like are formed. Other facilities that can be used to to prevent the barrier side pocket from closing Materials that expand to wetting. Examples of such Materials are viscose foam, tablets of superabsorbent material or resilient cotton that has been compressed and compressed Condition with water-soluble binder was glued.

According to one preferred embodiment of Invention are the intermediate storage parts on both side edges of the object. Caching parts can also on both sides of the midline, in the transverse direction of the object runs, be arranged.

Of the absorbent body comprises a storage part which is in direct communication with the liquid transfer part and in direct or indirect connection with the intermediate storage part is arranged. The storage part has a greater fluid affinity than the intermediate storage part and the liquid transfer part and has the ability on, liquid from the liquid transfer part dissipate. The storage part is arranged in the article such that liquid from the cache part via the liquid transfer part transferred to the memory part becomes. It is advantageous if the storage part with a material the ability contains absorbed liquid to bind. Examples of such materials are polymers, commonly are known by the name superabsorbent. Superabsorbents are Materials that have the ability have, liquid in a measure of several times to absorb the weight of the material itself while doing so an aqueous one Form gel.

The Fluid transfer parts are within the staging portions in the transverse direction of the object, between each side edge and the center line, in the longitudinal direction of the object runs, arranged. One or two storage parts are centrally located between along the liquid transfer section the longitudinal center line arranged. The object comprises two memory areas along the longitudinal center line are arranged, it is for a storage area expediently, in the direction of an end edge the object to be offset, while the other memory area is offset to the other end edge of the article. In such a Design can be the absorbent article with little or no absorbent material be configured in the crotch section. This has several advantages on. For example, it is possible the Object with a very slim and comfortable crotch section embody. In addition, can a diaper are held in position with such absorbent body, Without that elastic elements are required to wrap the diaper around Legs of the user to keep in contact.

Around the use of the absorbent material along the entire length of the It is expedient for at least one object to be made easier Liquid transfer part substantially along the entire longitudinal direction of the article runs. Accordingly, a liquid transfer portion along the entire transverse direction of the article may be arranged.

The intermediate storage portions are liquid receiving areas in the absorption body and therefore must be able to rapidly enter and absorb liquid. The staging portions also form temporary fluid storage spaces and therefore must be able to dispense fluid relatively easily to a material of greater fluid affinity. An example of a material that has been found to work well as in the intermediate storage parts is HTCTMP, that is, high-temperature chemical thermo-mechanical cellulose pulp having a bulk of 8 cm ³ / g. Such a suitable cellulose pulp is shock-dried pulp of the type described in WO 94/10957.

The liquid transfer members must remove liquid from the intermediate storage members, which means that the material in the liquid transfer members must be woven such that it has greater fluid affinity than the material in the intermediate storage members. Suitable materials for the liquid transfer parts are chemical cellulose pulp having a bulk of 6 cm ³ / g, and materials of the type as described in WO 94/10956, with a bulk 3 to 3.5 cm ³ / g.

The absorbed liquid must ultimately be in stored in the storage part, ie that the storage part must have the ability to discharge liquid from the liquid transfer parts. This can be achieved using conventional storage materials such as a sheet of highly compressed cellulosic fibers, cellulose foam or the like. The storage part advantageously contains a superabsorbent material capable of absorbing liquid and binding the absorbed liquid in the form of an aqueous gel. It is also possible to use a superabsorbent material alone as a storage material.

The various absorption parts contained in the article are, can from different material types and different properties be formed and in particular with different abilities liquid as described above. It is also possible the desired fluid transport between the various parts using an absorbent material to achieve that includes a thermoplastic material. Such a material can by heat be solidified, so that there are different densities in different Areas, making it possible is to obtain a material from one and the same source material, in the liquid is transported in a predetermined manner.

Around to further improve the safety of the object against discharge, can Edge barriers may be arranged along the side edges of the Object in the longitudinal direction run.

such Side barriers can include elastic elements. It is also possible edge barriers through Arranging a liquid-tight Form materials along the side edges of the article.

To the An example is the liquid-tight surface layer Have edge portions over the side edges of the object run. Such edge barriers can through folded back sections a thin one Plastic film can be created or they can pass through a stiffer material to water or presses may be formed. In the latter case, the absorbent body of the article in a bowl-shaped liquid-tight Shell are placed, which towering around the perimeter of the absorption body Has walls.

The liquid catching barrier side pockets according to the invention can by Edge barriers or barrier pockets, which at the front edge of the Subject and / or its trailing edge are arranged to be supplemented.

One absorbent article according to the invention can be advantageously by means of fasteners, such. a belt or stripes that are only centered on the front or back edge of the item appropriate to be adapted to a user. The advantage of Fasteners of this type is that they prevent the barrier side pockets of the article are pressed against the body. This facilitates the ventilation the skin in case of bedridden Persons while like the midsection of the object at the same time body fluid captures then promoted to the side things becomes.

BRIEF DESCRIPTION OF THE CHARACTERS

The Invention will be described with reference to the figures, which are given in the accompanying drawings Drawings are shown, described in more detail, in which:

1 shows a plan view of a diaper with an absorbent body according to the invention,

2 the fluid flow out inside the diaper 1 shows when used

3 a first alternative embodiment of an absorbent body according to the invention,

4 shows a second alternative embodiment of an absorbent body according to the invention,

5 a third alternative embodiment of an absorbent body according to the invention,

6 shows an incontinence pad according to the invention, and

7 shows a cross section through an absorbent article according to another embodiment of the invention.

PRECISE DESCRIPTION PRESENTING EMBODIMENTS

The in the 1 and 2 illustrated diaper 1 comprises a first liquid-permeable surface layer 2 , a second liquid-tight surface layer 3 and an absorbent body 4 that between the surface layers 2 . 3 is arranged. The two surface layers 2 . 3 have a greater extent in their plane than the absorption body 4 and protrude over the absorbent body 4 beyond its entire scope. The surface layers 2 . 3 are on the inside of the protruding sections 5 eg by gluing or welding with heat or ultrasound connected.

The liquid-permeable surface layer 2 may be formed of any material known for this purpose, eg a layer of nonwoven fabric, a perforated plastic film, a net material or the like. The surface layer 2 may of course also have a laminate of two or more layers of the same or different materials. The liquid-permeable surface layer 2 however, it does not have to be a separate component and instead could be an integral part of the absorbent body 4 be. In such an embodiment, the surface layers form 2 . 3 no protruding edge 5 to the absorption body 4 , Examples of materials that the surface layer 2 can form and also in the absorption body 4 may be contained, foam, cotton or the like.

The liquid-tight surface layer 3 For example, a liquid-tight plastic film, a nonwoven layer coated with a liquid blocking material, or another easily deflectable material layer which is resistant to liquid penetration may be present. However, it may be advantageous if the liquid-tight surface layer 3 is breathable to a certain extent, ie the passage of water vapor through the layer 3 allowed.

The diaper 1 has an elongated shape with wider front and rear distances 6 . 7 and a narrower intermediate crotch section 8th on. The front section 5 is the part of the diaper 1 which is intended to point forward to the user when the diaper is used and the back section 7 is the part of the diaper intended to be pointed back at the user. The diaper 1 also has two inwardly curved longitudinal side edges 9 . 10 , a front edge 11 and a back edge 12 , two front corner sections 13 . 14 and two rear corner sections 15 . 16 on.

The diaper 1 is of the type that is held together during use such that, like underwear, it surrounds the lower portion of the user's torso. For this purpose is a band 17 . 18 arranged from each side edge 9 . 10 at the rear edge 12 the diaper protrudes. The bands 17 . 18 are meant to be with a recording area 19 interacting on the liquid-tight surface layer 3 at the front section 6 the diaper 1 is arranged. Such a receiving area 19 preferably has some type of stiffening, eg in the form of an additional plastic layer or a coating applied to the liquid-tight surface layer. Of course, it is also conceivable other types of fastening arrangements for the diaper 1 such as buttons and buttonholes, hooks and eyes, press studs, hook and loop fasteners or the like.

The diaper 1 is also with prestressed, longitudinal elastic elements 20 . 21 provided along the side edges 9 . 10 the diaper are arranged. The elastic elements 20 . 21 are designed to be the diaper 1 bend in the shape of the user's body and at the same time they form the leg elastics of the diaper. Thus serve the elastic elements 20 . 21 to the side edges 9 . 10 to keep the diaper in contact with the user's legs to ensure that, during use, a backlash occurs between the diaper and the user's body through which play bodily fluid could spill out of the diaper.

The surface of the absorption body 4 leading to the liquid-permeable surface layer 2 is divided into two different parts that perform different functions in the absorption body. So has the absorption body 4 four caching parts 22 - 25 on, those at the corner sections 13 to 16 the diaper are arranged, a liquid transfer part 16 closest to the liquid-tight layer 3 as a material layer with the same shape and planar extension as the absorption body 4 is arranged and two memory parts 27 . 28 along a longitudinal centerline 29 through the diaper at the front section 26 or the rear section 7 are arranged. The materials in the different parts are chosen so that the liquid affinity in the direction of the intermediate storage parts 22 - 25 to the liquid transfer part 26 and on to the storage parts 27 . 28 elevated. In addition, the different parts 22 - 28 arranged in such a relationship to each other, that liquid, to the side edges 9 . 10 the diaper runs out, and near the side edges 9 . 10 is absorbed, then actively from the side edges 9 . 10 to the storage parts 27 . 28 is transported away.

To further increase the safety of the diaper against leakage are barrier strips 30 . 31 along each side edge 9 . 10 the diaper is placed on the surface which, during use, is intended to be directed towards the user. The barrier stripes 30 . 31 are along the outside of the liquid pervious surface layer 2 arranged alternatively, but they can alternatively also on the inside of the liquid-permeable surface layer 2 be arranged. The barrier stripes 30 . 31 extend outward to the edge seams 5 on each side edge 9 . 10 , creating fluid-blocking side pockets 40 . 41 on the side edges 9 . 10 the diaper are formed. The barrier stripes 30 . 31 extend into the transverse direction of the diaper to such an extent that it covers the staging areas 22 . 25 overlap.

Suitable liquid blocking materials are various types of hydrophobic nonwoven fabric layers, plastic films, or coatings of liquid resistant material. For reasons of comfort, it is advantageous that the barrier material is breathable, ie that it is permeable to air and vapor. Another way of avoiding the accumulation of moisture between the barrier material and the user's body during use is to form a thin layer of absorbent material, eg, a nonwoven on the outside of the liquid blocking side pockets 40 . 41 to arrange.

Material types which are suitable for use in the staging areas, are fibrous structures, foam or similar porous material. For example, it is possible So-called HTCTMP, which is a cellulose fluff pulp with low Wettability is.

The International Patent Application PCT / SE98 / 00078 describes absorbent Structures like fibrous structures made from chemo-thermomechanical-cellulose fluff pulp (CTMP) are constructed in which the surface of the CTMP fibers with a Means to increase the returning one Wetting angle (English: return wetting angle) was treated. It has been demonstrated that such treatment of CTMP fibers allows the returning one Wetting angle from 0 ° - 10 ° to about 40 °, i. E. that the absorbent structure itself after wetting a relative has low wettability.

Other Types of absorbent materials can also be treated about the change to reduce the wettability, which otherwise often wetting occurs.

One dynamic contact angle is to be understood as the angle that exists, if a liquid front is offset. The terms "leading wetting angle" (Engl .: advance wetting angle) and "returning Wetting angle "(Engl .: return wetting angles) are meant to indicate whether the dynamic Contact angle is measured when a liquid progresses over a dry surface or if a liquid is over one recently wetted surface recedes.

One Agent that can be used to control the returning wetting angle to increase, is ethylhydroxyethyl cellulose (EHEC), which is based on the absorbent Construction e.g. by spraying or coating with a liquid, which the agent e.g. in the form of a solution or suspension contains or by any other known method of surface treatment, is applied.

By backing up that parts 22 - 28 in the absorption body 4 If there are differences in capillary pressure, it is possible to have a controlled and predictable distribution of liquid in the absorbent body 4 to achieve.

The material in the liquid transfer part 26 is preferably a material that provides good liquid transport. One material which can be used in this context is chemically produced cellulose fluff pulp (CP) having a basis weight of about 200 g / m ² . Another material that has been found to work well is the absorbent material described in WO 94/10956. This material is a dry formed fiber layer that is used directly in an absorbent article without first being defibred. Absorbent foam material may also act as absorbent material in the liquid transfer part 26 be used.

The material that is in the storage parts 27 . 28 is used should have a high wettability and Kapillaranziehung. Suitable materials are mixtures of fluff pulp and highly absorbent polymeric materials, commonly referred to as superabsorbents. For example, a superabsorbent material may be in the form of fibers, flakes, particles, granules, or a film and is capable of absorbing body fluid several times its own weight to form an aqueous gel. A superabsorbent absorbs liquid relatively slowly, but is able to keep the absorbed liquid under pressure. For example, the superabsorbent material may be mixed with cellulosic fibers. Alternatively, the superabsorbent material may be disposed between layers of material that provides good liquid transport, such as layers of tissue material or the like. An advantage of such an arrangement is that the liquid quickly reaches the greater part of the superabsorbent material.

2 represents how the body fluid in the diaper 1 , in the 1 is shown distributed when the user is in a page position. In the figure, the body of the user has been omitted and the diaper is from the opening at the waist of the user in the direction to the crotch part 8th seen shown. In the figure, the diaper is with the front portion 6 directed to the left side of the figure, while the rear section 7 is directed to the right side. The user is also on a support 32 so that the diaper has an upper part 33 and a lower part 34 that has up the carrier 32 lie.

When urinating, fluid is mainly in the crotch part 8th the diaper between the two storage areas 27 . 28 output. As the user lies, some of the liquid will become the lower part under the effect of gravity 34 the diaper down to run, as shown by the arrow a. Much liquid becomes the intermediate storage parts 22 . 24 run down in the lower part 34 are arranged, with the parts 22 . 24 the parts of the diaper are the furthest down closest to the wearer 32 are arranged. The body fluid is in the intermediate storage parts 22 . 24 it absorbs and prevents it from over the lower side edge 9 the diaper runs out. The liquid that is in the intermediate storage parts 22 . 24 is gradually collected by the material in the liquid transfer section 26 taken to the caching parts 22 . 24 adjoins, since the material in this part 26 a greater fluid affinity than the material in the intermediate storage part 22 . 24 having. The liquid is then removed from the liquid transfer section 26 to the storage parts 27 . 28 promoted to the outside, where it ultimately remains. The transport of the liquid between the liquid transfer part 26 and the storage parts 27 . 28 is also actively achieved as an effect of the difference in liquid affinity between these areas.

3 shows an alternative absorption body 304 with a single central longitudinal storage part 327 that is in the plane of the absorption body 304 through a liquid transfer part 326 surrounded by a buffer section 322 is surrounded. The various parts may comprise layers of material stacked on each other, the liquid transfer part 326 a larger planar extent than the memory part 327 and the intermediate storage part 322 has a greater planar extent than the liquid transfer portion 326 , In such an embodiment, the intermediate storage part is 322 preferably located closest to the surface intended to be directed to the user when the absorbent body 304 is disposed in the absorbent article. However, it is essential that in the transverse direction of the absorption body portions of the intermediate storage part 322 located outside of the liquid transfer part 326 are arranged, are provided and that the liquid transfer part 326 having corresponding portions, in the transverse direction of the absorption body 304 seen outside the memory part 322 are arranged.

4 shows an absorbent body 404 with a continuous cache part 422 which is around a central, rectangular liquid transfer part 426 is arranged. In this figure, the absorption body 404 as viewed from the surface intended to be used by the person using the article during use of the absorbent article in an absorbent article. The cache part 422 is formed by a continuous fluid receiving layer which overlies the fluid transfer part 426 is arranged. Between the liquid transfer part 426 and the cache section 422 or under the liquid transfer part 426 ie furthest away from a person who is the 4 considered, three strips of liquid storage material are provided, which are the liquid storage parts 427 . 427 ' . 427 ' form.

5 shows in cross section an embodiment with a centrally located storage part 527 consisting of layers of liquid distribution material with a superabsorbent material disposed between the layers of liquid distribution material. The superabsorbent material is disposed only in the central portion of the laminate. Thus, the liquid distribution material extends in the transverse direction over the superabsorbent material on both sides of the storage part 527 and forms liquid transfer parts 526 which are in direct connection with the buffer parts 522 . 523 standing at the side edges 509 . 510 of the object are arranged.

The absorbent article 504 who in 5 is further shown, barrier side pockets 540 . 541 on, by means of the liquid-tight surface layer 503 around the caching parts 522 . 523 on the side edges 509 . 510 the article is folded back around are formed. The folded back portions of the liquid-tight surface layer 503 thus form barrier side pockets 540 . 541 that to the liquid transfer parts 526 are open and allow the liquid excreted by the user into the intermediate storage parts 522 . 523 to penetrate and then over the liquid transfer parts 526 to the storage part 527 to be transported. To ensure that the precipitated liquid in the barrier side pockets 540 . 541 is running, is an edge tab 542 . 543 on each barrier side pocket 540 . 541 arranged without on the absorption body 504 to be attached. This will create a gap between each edge tab 542 . 543 and the absorbent body 504 formed in which the fluid is braked and into the barrier side pocket 540 . 541 can be performed.

The effect of free edge tabs 542 . 543 can be done by placing elastic elements in each edge tab 542 . 543 be further increased. Such elastic elements help the edge flap from the surface of the absorbent body 504 at lift and form an edge that slows down the fluid flow and into the side pocket 540 . 541 leads.

Although it is preferred for reasons of comfort, the liquid-permeable surface layer 502 outside a liquid-tight surface layer 503 of plastic film, it is of course possible instead, the liquid-tight surface layer 503 to arrange on the outside. An advantage of such an embodiment is that the deceleration effect of a raised edge tab 542 . 543 larger when the edge tab through the liquid-permeable surface layer 502 is covered.

6 shows an incontinence pad 601 of the type intended for individuals with low incontinence. Such an incontinence pad has a size that allows the incontinence pad to be placed in the crotch region of normal underwear.

The incontinence pad 601 is with a liquid-tight surface layer 603 provided to a bowl-shaped container for the absorption body 604 of the incontinence pad 601 is formed. A liquid-permeable surface layer 602 is above the absorption body 604 arranged and with a continuous edge seam 605 on the liquid-tight surface layer 603 attached.

The cup-shaped container, by the liquid-tight surface layer 603 is formed has an edge wall 603 ' on, stretching along the side edges 609 . 610 and end edges 611 . 612 of the object. The edge wall 603 ' has a height equal to the thickness of the absorbent body 604 matches, reducing the edges of the absorbent body 604 are covered by the liquid-tight material. The edge wall 603 ' forms barrier side pockets together with the liquid-tight surface layer 640 . 641 that prevent those in the caching parts 622 - 625 Accumulated fluid from the incontinence spa is running.

A cupped liquid-tight surface layer can e.g. from a foamed Material layer, a plastic layer, or cardboard, with a liquid-tight Material was coated, formed.

The Shell shape can also be achieved by using elastic elements become.

The absorption body 604 can, as in one of the 1 to 5 is represented, constructed, or he can, as it is in 6 is shown with intermediate storage parts 622 - 625 that in each end section 606 . 607 of the article along the longitudinal side edges 609 . 610 are arranged, with a liquid transfer part 626 that is inside the cache parts 622 - 625 is arranged in the transverse direction and with a number of small circular memory parts 627 passing over the surface of the fluid transfer area 626 be distributed, be built.

7 shows a cross section through an absorbent article in which the liquid transfer part 726 as a continuous layer over the entire width of the article within the liquid-tight surface layer 703 extends. The caching parts 722 and 723 are thus both directly and indirectly with the liquid storage part 727 over the liquid transfer part 726 in contact.

Fluid-blocking barrier side pockets 740 . 741 are by means of liquid-tight barrier strips 730 . 731 formed on the outside of the liquid-permeable surface layer, so that the intermediate storage parts within the barrier side pockets 740 . 741 are arranged.

Claims (14)

Absorbent article having a longitudinal direction and a transverse direction, a center line ( 29 ), which runs in the longitudinal direction, a center line which extends in the transverse direction, two side edges ( 9 . 10 ), which run in the longitudinal direction, two end edges ( 11 . 12 ) extending in the transverse direction and comprising a liquid-permeable surface layer ( 2 ), a liquid-tight surface layer ( 3 ), a barrier side pocket ( 40 . 41 ) along each side edge ( 9 . 10 ) is arranged and has openings which are directed to the longitudinal center line and an absorbent body ( 4 ) located between the surface layers ( 2 . 3 ) and at least one intermediate storage part ( 22 - 25 ) and a liquid transfer part ( 26 ), Characterized in that the absorption body comprises a storage part ( 27 . 28 ), which is in direct communication with the liquid transfer part ( 26 ) and in direct or indirect connection with the intermediate storage part ( 22 - 25 ), wherein the intermediate storage part ( 22 - 25 ) along the side edges ( 9 . 10 ) in direct contact with the liquid transfer part ( 26 ), and in that the intermediate storage part ( 22 - 25 ) is arranged inside the barrier side pockets and also in that the liquid transport between the material in the intermediate storage part ( 22 - 25 ) and the liquid transfer part ( 26 ) is such that the liquid transfer part ( 26 ) Liquid from the intermediate storage part ( 22 - 25 ), and in that the liquid transfer part ( 26 ) within the staging part ( 22 - 25 ) between the side edges ( 9 . 10 ) and the center line ( 29 ) extending in the longitudinal direction of the article, and also in that the storage part ( 27 ) centrally between the liquid transfer parts ( 26 ) is arranged. Absorbent article according to Claim 1, in which the article has an end section ( 6 . 7 ) at each end edge ( 11 . 12 ) and a step section ( 8th ) between the end sections ( 6 . 7 ), characterized in that the barrier side pockets ( 40 . 41 ) along the side edges ( 9 . 10 ) on at least one end portion ( 6 . 7 ) are arranged. Absorbent article according to claim 1 or 2, characterized in that the barrier side pocket ( 40 . 41 by placing a liquid barrier in the form of a hydrophobic material layer ( 30 . 31 ) above the intermediate storage part ( 22 - 25 ) near the liquid-permeable surface layer ( 2 ) is trained. Absorbent article according to claim 1 or 2, characterized in that the barrier side pocket ( 540 . 541 ; 640 . 641 ) by means of the liquid-tight surface layer ( 503 ; 603 ) with edge sections ( 603 ' ) around the side edges ( 509 . 510 ; 609 . 610 ) of the article are folded is formed. Absorbent article according to one of claims 1 to 4, characterized in that a device ( 542 . 543 ) for facilitating the transfer of liquid to and from the intermediate storage part ( 522 . 523 ) near the opening of the barrier side pocket ( 540 . 541 ) is arranged. Absorbent article according to claim 5, characterized characterized in that the means for facilitating a liquid transfer to and from the buffer section one or more compressed Grooves in the absorption body includes. Absorbent article according to claim 5 or 6, characterized in that the means for facilitating liquid transfer to and from the intermediate storage part (11) 522 . 523 ) an edge portion ( 542 . 543 ) the barrier side pocket ( 540 . 541 ) which is free of bonds with the absorbent body. Absorbent article according to claim 5, 6 or 7, characterized in that the means for facilitating a liquid transfer to and from the intermediate storage part comprises an elastic element, which is attached to the barrier side pocket. Absorbent article according to one of claims 5 to 8, characterized in that the means for facilitating a liquid transfer to and from the intermediate storage part comprises a spacer element. Absorbent article according to one of the preceding claims, characterized in that the intermediate storage parts ( 22 - 25 ) on both side edges ( 9 . 10 ) are arranged. Absorbent article according to claim 10, characterized characterized in that the staging parts on both sides the center line, which runs in the transverse direction of the object arranged are. Absorbent article according to claim 1, characterized in that the absorption body ( 4 ) two memory parts ( 27 . 28 ), which along the longitudinal center line ( 29 ) are arranged. Absorbent article according to one of the preceding claims, characterized in that at least one liquid transfer part ( 26 ) extends substantially along the entire longitudinal direction of the article. Absorbent article according to one of the preceding claims, characterized in that at least one liquid transfer part ( 26 ) extends substantially along the entire transverse direction of the article.